The gene function was studied by using the method of gene disruption and the result showed that the sawl played an important role in developmental changes from aerial hypha to spore formation of Streptomyces ansochromogenes.

• 用基因破坏的策略进一步研究了该基因的生物学功能；结果表明saw1在圈卷产色链霉菌气生菌丝到孢子形成的发育转变中有重要作用；是分化中控制孢子发育起始的一个重要基因.